JPH0514274A - Radio communication terminal device mounted with dtm receiver - Google Patents

Abstract

PURPOSE:To provide a radio communication terminal device mounted with a DTMF receiver which can receive a DTMF signal related to a telephone number sent from a transmitting destination during the calling, store this into a memory as a telephone number, call the stored telephone number by the prescribed operation and easily send the dial data. CONSTITUTION:When a transmitting side transmits a telephone number as a DTMF signal, during the receiving or at the time of receiving such as the absence time, DTMF signal data are detected automatically by a DTMF receiver 7, further, coded by a processing means, and preserved to a memory 9. The preserved DTMF signal data are further called by the keyboard operation, the dial data can be sent and the calling-back can be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device used in a mobile phone, a car phone, etc., and is a dual tone multi frequency device in which a plurality of frequency signals received via wireless communication are superimposed. Signal (hereinafter DTMF
The present invention relates to a DTMF receiver-equipped wireless communication terminal device having a function of determining, detecting, and storing data (referred to as a signal).

[0002]

2. Description of the Related Art Conventionally, in a wireless communication terminal device, for example, a mobile phone, a wireless signal from a transmission destination is output as voice on the receiving side, and a coded signal is demodulated into data by a decoder unit and a predetermined signal is transmitted. Some have been designed to perform communication protocol processing. Some mobile phones of this type have a function of storing data such as the telephone number of the destination in the telephone of the receiving side, but in the past, the operator operated the keys of the mobile phone while looking at the telephone number list. The dial number is stored by the user, or the destination is notified by voice from the destination, the receiving side hears it, and the heard content is stored in the storage device by a key input operation.

[0003]

However, in order to store the data such as the destination telephone number as described above, the receiving side operator temporarily stores the destination telephone number, and then the key input is performed. Since the operation is required, there is a problem that the operation is troublesome and the number is apt to be mistaken. The present invention solves the above-mentioned problems, and receives a DTMF signal related to a telephone number sent from a destination during a call, stores this as a telephone number in a storage device, and stores the stored telephone number. An object of the present invention is to provide a wireless communication terminal device equipped with a DTMF receiver that can be called by a predetermined operation and send dial data.

[0004]

In order to achieve the above object, the present invention relates to a wireless communication terminal device that uses wireless as a transmission medium, a receiving device for receiving a signal including an encoded signal from a transmission source, and a receiving device. Demodulating device for demodulating data from the encoded signal, DTMF receiver for reading DTMF signal data from the received signal, the demodulating device and DT
A processing device for controlling the entire communication terminal device by a signal from the MF receiver and a key input signal, a data storage device for storing the DTMF signal data read by the DTMF receiver, and a DTM stored in this storage device.
An encoding device for calling F signal data by a predetermined key input operation into an encoded signal and a transmitting device for transmitting a signal encoded by the encoding device are provided.

[0005]

According to the above-mentioned structure, the transmitting side sends the telephone number to DT.
When transmitted as an MF signal, the DTMF signal data is automatically detected by the DTMF receiver during reception or during reception such as absence, and is further encoded by the processing means and stored in the storage device. This saved DTM
Further, the F signal data can be called by a keyboard operation and dial data can be sent out, which enables callback.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A mobile phone (wireless communication terminal device) according to an embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram of the telephone. Figure 2
FIG. 4 shows a wireless signal path in using the mobile phone according to the present invention. In these figures,
The mobile phone has an antenna 1 for detecting a radio signal from a wireless line, an antenna duplexer 2 for sharing an antenna between a transmitter and a receiver, a reception circuit (RX) 3 for receiving the detected radio signal, and a reception It has an audio circuit 4 for amplifying an audio signal portion of the wireless signal and a speaker 5 for outputting the amplified audio signal. Also, the decoder 6 is the receiving circuit 3
It receives a specific coded signal from, demodulates it into an original information signal, and transfers it to a central processing unit (hereinafter referred to as CPU) 8. Before establishing the call channel, a wireless call line is established using the control channel. The signal on this control channel is demodulated by the decoder 6 and the CPU 8
Read on.

Further, the DTMF signal (analog signal) of the radio signal during the call from the receiving circuit 3 is determined and detected by the DTMF receiver 7 and encoded to be the CPU 8.
And is stored in a storage device (hereinafter referred to as a memory) 9. When the dial keys 10 are pressed, corresponding signals are input to the CPU 8 and various processing operations are performed. Further, the sound input through the microphone 11 is amplified by the microphone amplifier 12, converted into a radio signal by the modulator (MOD) 13, and transmitted by the transmission circuit (T
X) 14 and the antenna duplexer 2 to transmit from the antenna 1. Further, the data read from the memory 9 by the CPU 8 by the operation of the dial key 10 and the input information from the dial key 10 are coded by the encoder 15 and converted into a wireless signal by the MOD 13, and the transmission circuit (T).
X) 14 and the antenna duplexer 2 to transmit from the antenna 1.

Particularly, in this embodiment, the DTMF receiver 7
Detected by and stored in the memory 9
The F signal data can be read by a predetermined operation of the dial key 10. Further, the present telephone has an automatic answering device and is provided with an answering machine answering circuit 16, whereby a telephone line is automatically established when the receiver is absent, and the sender dials a dial number by key operation.
It is possible to send a message to be sent by a TMF signal.

Next, the communication system of the portable telephone according to this embodiment described above will be described with reference to FIG. Figure 2
FIG. 7 is a block diagram showing a call operation between the present mobile phone and another mobile phone or a wired phone. The signal of the wire telephone E is transferred to the wireless control station B1 which converts the signal to the wireless signal by the wired switching center C, and the wireless base station A1 which transmits the wireless signal.
Is sent to the mobile phone D1 via. A radio signal transmitted from another mobile phone D2 is transferred to a radio control station B2 via a radio base station A2 that controls outgoing / incoming call connection in the area where the mobile phone D2 is present, and further, a wired switching center C Similarly to the signal path of the wired telephone E, it is transmitted to the mobile phone D1.

Next, the operation of the mobile phone D1 in the above communication system will be described with reference to FIGS. In this communication system, when the present mobile telephone D1 and the other mobile telephone D2 or the present mobile telephone D1 and the wired telephone E are in the call state, the other mobile telephone D2.
Or, by operating the dial keyboard of the wired telephone (only the one that has the DTMF signal), D
The TMF signal is sent to the mobile phone D1. The DTMF signal of the destination dial number sent to the mobile phone D1 is determined and detected by the DTMF receiver 7 built in the mobile phone D1, encoded, and stored in a predetermined area of the memory 9 by the CPU 8. If the area to be memorized at this time is the same area as the memory used as the memory dial,
It is possible to make a memory dial call from the next time without entering a new dial number.

The present invention is not limited to the above embodiment, and various modifications can be made. For example, when the other party sends the other party's telephone number by a DTMF signal during a call, the other party's destination is also included. It may be arranged such that data for identifying the data is sent, and these are automatically written in a predetermined area of the memory 9. Also, this mobile phone D
If 1 has an automatic incoming call function, it can store the telephone number from the other party of the missed call, and like the above, input a new dial number to the other party of the missed call. You can call back without.

[0012]

As described above, according to the present invention, in a terminal device of a mobile phone which is connected to a wireless line and is in a call state, when the other party's telephone number is received as a DTMF signal,
Since this can be automatically encoded and stored in a predetermined memory area, and the telephone number stored in the memory area can be called by a predetermined operation to send dial data, As described above, the work of listening to the voice from the other party and inputting the keyboard into the memory dial is omitted, and the call can be made to the other party by a simple operation without inputting the dial number in the subsequent calls. Also, by providing the above memory function even for an incoming call while absent, it becomes possible to call back easily.

[Brief description of drawings]

FIG. 1 is a block diagram of a wireless communication terminal apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an example of a communication system to which the present device is applied.

[Explanation of symbols]

 3 receiving circuit (RX) 6 decoder 7 DTMF receiver 8 central processing unit (CPU) 9 storage device (memory) 13 MOD 14 transmitter (TX) 15 encoder

Claims (1)

Claim: What is claimed is: 1. In a wireless communication terminal device using a wireless as a transmission medium, a receiving device that receives a signal including a coded signal from a transmission source, and data is demodulated from the received coded signal. A demodulator, a DTMF receiver for reading DTMF signal data from a received signal, the demodulator and D
A processing device for controlling the entire communication terminal device by a signal from a TMF receiver and a key input signal, and said DTMF
Data storage device for storing DTMF signal data read by the receiver, and DT stored in the storage device
DTMF receiver-equipped wireless communication, comprising: an encoding device for calling MF signal data as a coded signal by a predetermined key input operation, and a transmitting device for transmitting a signal encoded by the encoding device. Terminal device.